CN102924428A - Oligothiophene - Google Patents
Oligothiophene Download PDFInfo
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- CN102924428A CN102924428A CN201210405073XA CN201210405073A CN102924428A CN 102924428 A CN102924428 A CN 102924428A CN 201210405073X A CN201210405073X A CN 201210405073XA CN 201210405073 A CN201210405073 A CN 201210405073A CN 102924428 A CN102924428 A CN 102924428A
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- thiophenes
- oligothiophene
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- 210000004027 cell Anatomy 0.000 abstract description 81
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- JCKYGMPEJWAADB-UHFFFAOYSA-N chlorambucil Chemical compound OC(=O)CCCC1=CC=C(N(CCCl)CCCl)C=C1 JCKYGMPEJWAADB-UHFFFAOYSA-N 0.000 abstract description 16
- 206010028980 Neoplasm Diseases 0.000 abstract description 12
- 201000011510 cancer Diseases 0.000 abstract description 11
- 229960004630 chlorambucil Drugs 0.000 abstract description 11
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- 230000006907 apoptotic process Effects 0.000 abstract description 8
- 239000000975 dye Substances 0.000 abstract description 7
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- 239000000411 inducer Substances 0.000 abstract 1
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- 239000000243 solution Substances 0.000 description 18
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- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 2
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Abstract
The invention discloses oligothiophene as well as a preparation method and application thereof. The structural formula of the oligothiophene is shown as a formula (III) described in the specification. In the formula (III), m is equal to 3, and n is an integer of 1-6. The oligothiophene is applied to five aspects as follows: (1) application for preparing cancer cell proliferation inhibitors; (2) application for preparing cancer cell apoptosis inducers; (3) application for preparing cancer preventing and/or treating anti-cancer drugs; (4) application for preparing mitochondria targeted drugs; and (5) application in cell imaging as mitochondrial dyes. The oligothiophene keeps a framework of a conjugated polymer, so fluorescence properties of the oligothiophene can be used for cell imaging. The oligothiophene shown as the formula (III) is a specific dye for mitochondrion by experiments. Furthermore, the oligothiophene shown as the formula (III) further can be compounded with chlorambucil to form nano-particles. The results show that the compound is featured by the broad-spectrum cancer resistance and capable of increasing the anti-tumor activity.
Description
The application be that June 15, application number in 2011 are 201110160346.4 the applying date, denomination of invention divides an application for the innovation and creation of " a kind of oligo-thiophenes and preparation method thereof and use ".
Technical field
The present invention relates to a kind of oligo-thiophenes and preparation method thereof and application.
Background technology
Cancer has become one of main killer of harm humans health.In the therapeutic process of tumour, resistance is a murderous principal element.Along with the more and more advanced person for the treatment of means, it is more and more general that acquired resistance also becomes.Because the generation of resistance, many very effective anticarcinogens reduce greatly such as the result for the treatment of of cis-platinum, Chlorambucil, taxol etc.Therefore seek the new lead compound with broad-spectrum anti-tumor activity, find that the novel compound skeleton is significant.
Conjugated polymers (CPs) is because the main chain electron delocalization demonstrates unique physical/chemical, and three ten years have in the past become one of the most noticeable advanced material.Oligo-thiophenes is owing to having kept the skeleton of conjugated polymers, and its photoluminescent property can be used for carrying out cell imaging.Up to the present, there is not yet the report that relevant oligo-thiophenes has the multifunctional anticancer activity.
Plastosome is called as the generator of cell, yet because the singularity of its interior membrane structure allows any molecule to see through hardly.Therefore this character does not allow drug molecule to pass through equally, and to be directed to mitochondrial medicine significant to overcoming resistance in exploitation.
Chlorambucil (chlorambucil) is a kind of medicine that is widely used in the treatment chronic lymphocytic leukemia.Based on the reason of resistance, seeking new therapeutic strategy is challenging to the resistance that overcomes chlorambucil.
Summary of the invention
The purpose of this invention is to provide a kind of oligo-thiophenes with anticancer, cell imaging function and preparation method thereof.
The structural formula of oligo-thiophenes provided by the present invention is shown in formula III:
(formula III)
Wherein, m=3; N is the integer among the 1-6; R
1Be selected from the following radicals any one :-COOH ,-NH
2,-NHCH
3,-N (CH
3)
2,-N
+(CH
3)
3,-N
+(CH
3)
3Br
-,-NH (CH
2CH
3) ,-N
+(CH
2CH
3)
3,-O
-N
+(CH
2CH
3)
2,-COOCH
3,-COOCH
2CH
3,-SO
3H ,-SO
3CH
3,-CH
2COOH ,-CH
2COOCH
3,-NO
2,-PO
3,-CHO ,-OH ,-N
3,-OCHO ,-CN,
It is three Polythiophenes shown in the single thiophene shown in the formula I and the formula II that the present invention also protects two intermediates of oligo-thiophenes shown in the preparation formula III
(formula I) (formula II)
Wherein, the n in formula I and the formula II is the integer among the 1-6; R
1Be selected from the following radicals any one :-COOH ,-NH
2,-NHCH
3,-N (CH
3)
2,-N
+(CH
3)
3,-N
+(CH
3)
3Br
-,-NH (CH
2CH
3) ,-N
+(CH
2CH
3)
3,-O
-N
+(CH
2CH
3)
2,-COOCH
3,-COOCH
2CH
3,-SO
3H-SO
3CH
3,-CH
2COOH ,-CH
2COOCH
3,-NO
2,-PO
3,-CHO ,-OH ,-N
3,-OCHO ,-CN ,-Cl ,-I ,-Br,
M=1 in the formula II.
Prepare the method for oligo-thiophenes shown in the right formula III, comprise the steps:
1) halogenated alkane shown in 2-(3-thienyl) ethanol and the formula IV is reacted under the sodium hydride effect, obtains the compound shown in the formula I,
X(CH2)
nR
1 
(formula IV) (formula I)
N in the formula IV is the integer among the 1-6, and X is Cl, Br or I, R
1With R among the formula I
1Identical;
2) make the reaction of the compound shown in the formula I and N-bromo-succinimide, obtain the compound shown in the formula V;
3) single boric acid ester shown in the compound shown in the formula V and the formula VI is reacted under palladium (0) katalysis, obtain the oligo-thiophenes shown in the formula II;
(formula V) (formula VI)
R=(CH in formula V, the formula VI
2)
nR
1, n is the integer of 1-6, R
1With R among the formula I
1Identical;
4) make the reaction of the compound shown in the formula II and N-bromo-succinimide, obtain the compound shown in the formula VII;
(formula VII)
5) single boric acid ester shown in the compound shown in the formula VII and the formula VI is reacted under palladium (0) katalysis, obtain oligo-thiophenes shown in the formula III.
Wherein, the palladium (0) in step 3) and the step 5) is tetrakis triphenylphosphine palladium.
Another object of the present invention provides the application of polymkeric substance shown in the formula III.
The application of polymkeric substance shown in the formula III that provides of the present invention comprises following five aspects:
1) application of polymkeric substance shown in the formula III in preparation cancer cell multiplication inhibitor;
2) application of polymkeric substance shown in the formula III in preparation cancer cell-apoptosis inductor;
3) polymkeric substance shown in the formula III prevents and/or treats application in the cancer drug in preparation;
4) application of polymkeric substance shown in the formula III in the Mitochondrially targeted medicine of preparation;
5) as the application of plastosome dyestuff in cell imaging.
Wherein, described cancer cells is selected from following at least a: kidney cancer cell, lung carcinoma cell, liver cancer cell, breast cancer cell and colon cancer cell; The preferred human renal carcinoma cell A498 of described kidney cancer cell, the preferred human lung cancer cell A549 of described lung carcinoma cell, the preferred human liver cancer cell HepG2 of described liver cancer cell, the preferred human breast cancer cell MCF-7 of described breast cancer cell, the preferred human colon cancer cell HCT116 of described colon cancer cell;
Described cancer is selected from following at least a: kidney, lung cancer, liver cancer, mammary cancer and colorectal carcinoma.
A further object of the present invention provides a kind of mixture with broad spectrum anticancer.
Mixture provided by the present invention is composited by oligo-thiophenes shown in the formula III and Chlorambucil salt.
In the described mixture, the mol ratio of oligo-thiophenes shown in the formula III and Chlorambucil salt is 1:(1-5).The form of described mixture is nano particle, and its particle diameter is 10-100nm.
The preparation method of this mixture comprises the steps: oligo-thiophenes shown in the formula III is dissolved in the water, and to the aqueous solution that wherein dropwise adds Chlorambucil salt; Mixture was stirred 48-96 hour, namely obtain described mixture.
The mixture that provides among the present invention can be used for preparing the cancer cell multiplication inhibitor or for the preparation of the application that prevents and/or treats in the cancer drug.
Wherein, described cancer cells is selected from following at least a: kidney cancer cell, lung carcinoma cell, liver cancer cell, breast cancer cell and colon cancer cell; The preferred human renal carcinoma cell A498 of described kidney cancer cell, the preferred human lung cancer cell A549 of described lung carcinoma cell, the preferred human liver cancer cell HepG2 of described liver cancer cell, the preferred human breast cancer cell MCF-7 of described breast cancer cell, the preferred human colon cancer cell HCT116 of described colon cancer cell;
Described cancer is selected from following at least a: kidney, lung cancer, liver cancer, mammary cancer and colorectal carcinoma.
The invention provides the mitochondrial oligo-thiophenes with multifunctional anticancer activity of a kind of novel target.This oligo-thiophenes is owing to having kept the skeleton of conjugated polymers, and its photoluminescent property can be used for carrying out cell imaging.Find by test, oligo-thiophenes shown in the formula III is mitochondrial single-minded dyestuff.In addition, oligo-thiophenes shown in the formula III of the present invention also can form the mixture with nanostructure with Chlorambucil by electrostatic interaction.The result shows that this mixture has broad spectrum anticancer, has improved anti-tumor activity.
Description of drawings
Fig. 1 is the chemical reaction flow process figure of the synthetic oligo-thiophenes of the present invention.
Fig. 2 is the reacting flow chart of the mixture of the synthetic oligo-thiophenes of the present invention and Chlorambucil salt.
Fig. 3 is the stereoscan photograph of the mixture of the oligo-thiophenes that synthesizes of the present invention and Chlorambucil salt.
Fig. 4 is cell A498, the HepG2 cell survival rate under single thiophene and oligo-thiophenes effect; Wherein, 1T represents single thiophene 3, and 3T represents oligo- thiophenes 7, and 5T represents oligo-thiophenes 9.
Fig. 5 is cell A498, the MCF-7 cell survival rate under the mixture effect of oligo-thiophenes and Chlorambucil salt.
Fig. 6 is the cell imaging figure of oligo-thiophenes 9.
Fig. 7 is that oligo-thiophenes 9 is induced the apoptotic flow cytometer showed figure of A498.
Embodiment
The present invention will be described below by specific embodiment, but the present invention is not limited thereto.
Experimental technique described in the following embodiment if no special instructions, is ordinary method; Described reagent and biomaterial if no special instructions, all can obtain from commercial channels.
Preparing single thiophene 2:663 microlitre (6 mmole) 2-(3-thienyl) ethanol joins under nitrogen atmosphere in the dry DMF solution of sodium hydride (content 70%, 206mg, 6 mmoles).Stir after 30 minutes, it is excessive 1 then to add, 6-dibromo-hexane (4.6 milliliters, 10 mmoles), stirred overnight at room temperature.Add the shrend reaction of going out, methylene dichloride (3 * 100 milliliters) extracts three times, anhydrous magnesium sulfate drying, and behind the concentrating under reduced pressure, column chromatography (silica gel; Sherwood oil: ethyl acetate=40:1, v/v) separate to get product 0.54 gram, productive rate 31%.Single thiophene 2 structural identification data are as follows:
1H NMR (400MHz, CDCl
3) δ 1.61-1.45 (m, 4H), 1.72 (p, 2H, J=6.78), 1.99 (p, 2H, J=6.82), (3.04 t, 2H, J=6.98), 3.53 (t, 2H, 6.86), 3.57 (t, 2H, J=6.50), 3.76 (t, 2H, J=7.01), (7.15-7.10 m, 2H), 7.37 (m, 1H);
13C NMR (75MHz, CDCl
3) δ 25.43,28.01,29.57,30.83,32.79,33.82,70.77,71.03,121.04,125.14,128.53,139.46; HREI-MS Calcd.for C
12H
19BrOS m/z Acc.Mass290.0340,292.0320; Obs.Mass 290.0342,290.0316.
Prepare single thiophene 3: in the tetrahydrofuran solution of single thiophene 2 (291 milligrams, 1 mmole), add the aqueous solution (3 milliliters) of excessive Trimethylamine 99, stirring at room 24 hours, the pressure reducing and steaming Trimethylamine 99 gets white precipitate, is single thiophene 3.The structural identification data are as follows:
1H NMR (400MHz, CDCl
3) δ 7.27 (m, 1H), 7.02-6.98 (m, 2H), 3.65-3.56 (m, 4H), 3.47 (m, 11H), 2.91 (t, 2H, 6.78), 1.75 (br, 2H), 1.58 (br, 2H), 1.42 (br, 4H);
13C NMR (75MHz, CDCl
3) δ 23.02,25.76,25.81,29.25,30.61,53.27,66.64,70.37,70.79,120.96,125.10,128.48,139.34; ESI-MS m/z:270.2 (M); Anal.Calcd.for C
15H
28BrNOS:C51.42, H 8.06, and N 4.00; Found C 51.11, H 7.95, N 4.12.
Prepare single thiophene 4(R=(CH
2)
6Br): in the mixing solutions that is dissolved with the 1.00 gram tetrahydrofuran (THF)s of single thiophene 2 and acetic acid (12 milliliters, 1:1, v/v) disposable adding 1.22 gram N-bromo-succinimides, mixture stirring at room 1 hour, then pour in 30 ml waters and with Skellysolve A (3 * 15 milliliters) and extract three times, anhydrous magnesium sulfate drying, behind the concentrating under reduced pressure, column chromatography (silica gel; Sherwood oil: ethyl acetate=40:1, v/v) separate to get product 1.38 grams, productive rate 90%.Single thiophene 4 structural identification data are as follows:
1H NMR (400MHz, CDCl
3) δ=7.26 (s, 1H), 6.87 (s, 1H), 3.56 (t, J=6.5,2H), 3.42 (dd, J=11.6,5.7,4H), 2.79 (t, J=6.5,2H), (1.95-1.79 m, 2H), 1.65-1.51 (m, 2H), 1.51-1.30 (m, 4H).
13C NMR (100MHz, CDCl
3) δ=139.75,131.53,110.43,109.03,87.18,70.83,69.49,34.03,32.82,30.13,29.55,28.03,25.46.EI-MS m/z:448; Anal.Calcd.for C
12H
17Br
3OS:C 32.10, and H 3.82; Found C 32.05, H 4.01.
Prepare single boric acid ester 5(R=(CH
2)
6Br): at the DMF(108 milliliter of the single thiophene 2 of 2.65 grams) in the solution, splash into 54 milliliters of the DMF solution of the N-bromo-succinimides of 1.62 grams.Then mixture stirring at room 24 hours is poured into and is also used Skellysolve A (3 * 15 milliliters) extraction three times in 30 ml waters, anhydrous magnesium sulfate drying, and behind the concentrating under reduced pressure, column chromatography (silica gel; Sherwood oil: ethyl acetate=40:1, v/v) separate to get single bromination products 2.80 grams of 2 of single thiophene 2, productive rate 90%.In-78 ℃ of 20 milliliters of tetrahydrofuran solutions of single bromination products that contain 1.00 grams, add 1.04 milliliters of n-Butyl Lithiums (hexane solution of 2.72M) by syringe.Mixture continues to stir 2 hours at-78 ℃, then adds 0.7 milliliter of 2-isopropoxy-4,4,5,5-tetramethyl--1,3,2-dioxy boron pentane, mixture continues to stir 1 hour at-78 ℃, is heated to room temperature, continues to stir 12 hours, then pour in 30 ml waters and with Skellysolve A (3 * 15 milliliters) and extract three times, anhydrous magnesium sulfate drying, behind the concentrating under reduced pressure, column chromatography (silica gel; Sherwood oil: ethyl acetate=40:1, v/v) separate to get product 0.57 gram, productive rate 51%.Single boric acid ester 5 structural identification data are as follows: 1H NMR (400MHz, CDCl3) δ=7.50 (d, J=3.8,1H), (7.07 d, J=3.8,1H), 3.61 (t, J=6.9,2H), 3.43 (dt, J=13.5,6.2,4H), 3.18 (t, J=6.8,2H), 1.93-1.80 (m, 2H), 1.64-1.53 (m, 2H), (1.51-1.36 m, 4H), 1.33 (s, 12H) .13C NMR (100MHz, CDCl3) δ=150.34,131.49,130.82,83.71,71.81,70.54,33.95,32.82,30.75,29.63,28.05,25.46,24.86.EI-MS m/z:416.Anal.Calcd.for C18H30BBrO3S:C 51.82, H7.25; Found C 51.85, H 7.13.
Oligo-thiophenes 6(R=(CH
2)
6Br): at 0.51 mmole list thiophene, 4,4.09 mmole salt of wormwood, the Pd (PPh of 0.09 mmole
3)
4In the toluene and water mixed solvent of (tetrakis triphenylphosphine palladium (0)) (toluene/water=3/1, v/v), single boric acid ester 5(R=(CH of disposable adding 0.60 mmole
2)
6Br) tetrahydrofuran solution.Mixture stirs under nitrogen and continues after 20 minutes to reflux 20 hours.Cool to room temperature adds 15 ml waters.The mixture dichloromethane extraction, anhydrous magnesium sulfate drying, concentrated rear column chromatography (silica gel; Sherwood oil: ethyl acetate=500:35, v/v) purifying gets product.The structural identification data of oligo-thiophenes 6 are as follows:
1H NMR (400MHz, CDCl
3) δ=7.31 (s, 1H), 7.18 (s, 1H), 7.07 (s, 1H), (7.03 s, 1H), 6.99 (d, J=2.9,1H), 3.65 (s, 2H), 3.55 (s, 4H), 3.44 (s, 2H), 3.39 (s, 10H), 3.06 (s, 2H), 2.83 (s, 2H), (2.77 s, 2H), 1.84 (s, 6H), 1.55 (s, 6H), 1.43 (s, 6H), 1.36 (s, 6H).
13C NMR (100MHz, CDCl
3) δ=139.27,139.04,135.89,135.71,131.74,130.34,129.62,129.15,129.09,128.02,125.87,123.90,70.86,70.80,70.72,33.94,32.79,29.59,29.44,28.04,25.45.MS (MALDI-TOF): 870.3 (M), 790.3 (M-Br) .Anal.Calcd.for C
36H
53Br
3O
3S:C 49.72, and H 6.14; Found C 49.76, H 6.23.
Oligo-thiophenes 7(R '=(CH
2)
6N
+(CH
3)
3Br): reactions steps is synthetic referring to single thiophene 3.The aqueous solution that in the tetrahydrofuran solution of oligo-thiophenes 6, adds excessive Trimethylamine 99, stirring at room 24 hours, the pressure reducing and steaming Trimethylamine 99 namely gets oligo-thiophenes 7.The structural identification data are as follows:
1H NMR (400MHz, MeOD) δ=7.54 (d, J=3.9,1H), (7.40 d, J=3.8,1H), 7.24 (s, 1H), 7.17 (d, J=3.9,1H), (7.12 d, J=3.9,1H), 3.80-3.69 (m, 2H), 3.65 (s, 4H), 3.58-3.44 (m, 6H), 3.40 (s, 6H), 3.19 (s, 27H), 3.11 (s, 2H), 2.87 (s, 2H), 2.82 (s, 2H), (1.81 s, 6H), 1.63 (s, 6H), 1.45 (s, 12H).
13C NMR (100MHz, MeOD) δ=139.64,139.20,136.08,135.73,131.22,130.29,129.48,128.97,128.63,128.03,125.93,124.03,70.41,70.35,70.30,70.25,66.45,59.26,52.28,48.52,48.31,48.09,47.88,47.67,47.45,47.24,47.03,29.38,29.11,25.76,25.54,25.48,22.58.ESI-MS m/z:269.1 (M-3Br), 443.7 (M-2Br).
Oligo-thiophenes 8(R=(CH
2)
6Br): under-20 ℃, (44 milligrams of N-bromo-succinimides (NBS), 0.247 mmole) be dissolved in 10 milliliters of DMF(N, dinethylformamide) in, dropwise join (107 milligrams of oligo-thiophenes 6,0.123 in 5 milliliters of DMF solution mmole), whole process added in 5 minutes.Mixture continues to stir 2 hours, is heated to room temperature, reaction overnight.Reaction soln is joined in 100 ml waters Skellysolve A extraction three times, anhydrous magnesium sulfate drying, concentrated rear column chromatography (silica gel; Sherwood oil: ethyl acetate=500:35, v/v) purifying gets 6,110 milligrams of product two bromo oligo-thiophenes, productive rate 93%.Two bromo oligo-thiophenes 6 react to get product oligo-thiophenes 8 with single boric acid ester 5 shown in the embodiment 2, and concrete reactions steps is synthetic referring to oligo-thiophenes 6.The structural identification data of oligo-thiophenes 8 are as follows:
1H NMR (400MHz, CDCl
3) δ=7.26 (s, 2H), 7.19 (d, J=4.3,2H), 7.10 (d, J=3.9,2H), 7.05 (s, 1H), 7.00 (d, J=4.4,2H), (3.67 t, J=7.0,6H), 3.59 (t, J=6.4,4H), (3.52-3.29 m, 20H), 3.07 (s, 6H), 2.83 (t, J=6.2,4H), 1.84 (dd, J=12.9,6.3,10H), 1.58 (d, J=6.2,10H), 1.40 (dd, J=10.5,6.2,20H).
13C NMR (100MHz, CDCl
3) δ=139.64,136.28,136.25,136.03,135.95,135.81,134.18,131.76,131.67,130.48,129.51,129.40,129.15,128.21,128.09,124.16,71.07,71.00,70.86,70.83,70.68,34.06,32.91,30.08,29.95,29.75,29.71,28.18,27.18,25.62,25.56, MS (MALDI-TOF): 1448.4 (M), 1366.4 (M-Br) .Anal.Calcd.for C
60H
87Br
5O
3S:C 49.76, and H 6.06; Found C 49.67, H 6.06.
Oligo-thiophenes 9(R '=(CH
2)
6N
+(CH
3)
3Br): reactions steps is synthetic referring to single thiophene 3.The aqueous solution that in the tetrahydrofuran solution of oligo-thiophenes 8, adds excessive Trimethylamine 99, stirring at room 24 hours, the pressure reducing and steaming Trimethylamine 99 namely gets oligo-thiophenes 9.The structural identification data are as follows:
1H NMR (400MHz, MeOD) δ=7.46 (s, 2H), 7.34 (s, 1H), 7.31 (s, 1H), 7.27 (s, 1H), 7.16 (d, J=2.5,2H), (3.79 s, 6H), 3.71 (s, 4H), 3.62-3.49 (m, 10H), (3.42 s, 10H), 3.20-3.23 (m, 45H), 3.14 (s, 6H), 2.91 (s, 4H), 1.83 (s, 10H), (1.68 s, 10H), 1.48 (d, J=5.2,20H).
13C NMR (100MHz, MeOD) δ=140.12,136.92,136.39,136.31,136.16,135.43,134.09,131.08,130.97,130.49,130.46,129.35,129.01,128.58,128.16,128.11,124.27,70.48,70.40,70.31,70.26,70.13,66.42,58.84,52.35,29.60,29.52,29.48,29.22,29.18,25.79,25.60,25.50,22.66,22.63.ESI-MS m/z:268.9 (M-5Br), 356.3 (M-4Br), 501.2 (M-3Br).
The mixture (nano particle) of embodiment 4, preparation oligo-thiophenes 9 and Chlorambucil
With the oligo-thiophenes 9(2.41 milligram of embodiment 3 preparations, 1.38 micromoles) be dissolved in the 5 ml water solution, dropwise add the aqueous solution of 5 milliliters of Chlorambucil sodium salts (0.450 milligram, 1.38 micromoles).Mixture vigorous stirring 48 hours, lyophilize obtains mixture 1 (oligomer: Chlorambucil=1:1, mol/mol).
Add-on by changing the Chlorambucil sodium salt (0.9 milligram, 2.76 micromoles; 1.35 milligram, 4.14 micromoles; 1.78 milligram, 5.52 micromoles; 2.25 milligram, 6.90 the micromole) with similarity method synthesising complex 2 (oligomer: Chlorambucil sodium salt=1:2, mol/mol), mixture 3 (oligomer: Chlorambucil sodium salt=1:3, mol/mol), mixture 4 (oligomer: Chlorambucil sodium salt=1:4, mol/mol), mixture 5 (oligomer: Chlorambucil sodium salt=1:5, mol/mol).Its stereoscan photograph as shown in Figure 3.
Utilizing above-mentioned synthetic oligo-thiophenes and mixture thereof to adopt mtt assay to carry out anti tumor activity in vitro measures.Human lung cancer cell A549's cell strain, human liver cancer cell HepG2, human renal carcinoma cell A498, human breast cancer cell MCF-7, human colon cancer cell HCT116 and normal human embryonic lung diploid fibroblast HPF used in the test all are purchased from Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences's cell centre.
Concrete steps are as follows: human lung cancer cell A549's cell strain, after trysinization suspends, with the DMEM cell culture fluid that contains 10% serum, adjust cell concn to 4-7 * 10
4Individual/mL, join 96 porocyte culture plates, the parallel control hole is established in 100 μ L/ holes, puts into 5%CO
2In the incubator, cultivate 24h for 37 ℃ and make cell attachment.The oligo-thiophenes that adds respectively different concns, the medicinal composition of embodiment 4 preparations arranges zeroing hole, control wells, continues to cultivate 48h.Take out cell, outwell nutrient solution, add PBS (pH 7.4) solution of 1mg/mL MTT, 100 μ L/ holes, 37 ℃ are continued to cultivate 4h.Outwell liquid behind the 4h, add DMSO 150 μ L/ holes, micro-oscillator concussion 5min fully dissolves blue coloured particles formazan wherein.Culture plate is put into microplate reader, and 520nm measures the OD value.Calculate as follows survival rate: survival rate (%)=administration group cell mean light absorbency value/cellular control unit mean light absorbency value * 100%.Use at last SPSS (Ver.13.0) software that experimental data is processed, calculate cytoactive.
Carry out revision test 3 times, data and result are mean value.With human lung cancer cell A549 and the liver cancer cell HepG2 of vitro culture, human renal carcinoma cell A498, human breast cancer cell MCF-7, human colon cancer cell HCT116, and normally human embryonic lung diploid fibroblast HPF is model, the MTT experimental procedure is the same.
The result is as follows:
1) various cells and oligo-thiophenes 9 act on respectively 48 hours, the IC of 9 pairs of cells of oligo-thiophenes
50The results are shown in Table 1.
Table 1
| A498 | HCT116 | HepG2 | A549 | HPF | MCF-7 | |
| IC 50(μM) | 6.96 | 12.03 | 12.74 | 8.81 | 16.74 | 18.07 |
As shown in Table 1, oligo-thiophenes 9 has stronger selective inhibitory external to human renal carcinoma cell strain A498.
2) various cells and mixture 1,2,3,4 or 5 act on respectively 48 hours, mixture 1,2,3,4,5 and oligo-thiophenes 9, Chlorambucil to the IC of cell
50The results are shown in Table 2.
Table 2
| IC 50(μM) | A498 | A549 | MCF-7 | HepG2 | | HCT116 |
| Mixture | ||||||
| 1 | 2.60 | 5.86 | 2.68 | NA a | 7.05 | 5.66 |
| |
2.54 | 5.28 | 2.29 | NA a | 7.01 | 5.95 |
| |
2.61 | 4.94 | 2.27 | NA a | 7.02 | 5.11 |
| |
2.11 | 3.37 | 1.97 | NA a | 6.90 | 4.91 |
| |
2.45 | 4.57 | 2.43 | NA a | 7.79 | 6.04 |
| Oligo- |
6.96 | 8.81 | 18.07 | 12.74 | 16.74 | 12.03 |
| Chlorambucil | NA a | NA a | NA a | NA a | NA a | NA a |
aNot Available
Utilize above-mentioned synthetic oligo-thiophenes to carry out cell imaging, adopt Confocal laser scanning microscope (FV1000-IX81, Olympus, Japan) to characterize.
Concrete steps are: human renal carcinoma cell A498 cultivated 24 hours in the culture dish of glass bottom is arranged with the DMEM cell culture fluid that contains 10% serum, when cell count reaches near 60 the time, added 10 micromolar oligo-thiophenes 9 and continued cultivations 12 hours, and the contrast ware is set simultaneously.Remove plastosome fluorescence dye (M7512, Invitrogen) 100 nmoles that nutrient solution adds respectively 37 ° of C preheatings, dyeed 15 minutes.Dyeing is carefully removed nutrient solution after finishing, and with PBS washing 3 times, adds the PBS solution of mass concentration 4% Paraformaldehyde 96, fixes 15 minutes.With PBS washing three times, then use Confocal laser scanning microscope (FV1000-IX81, Olympus, Japan) to observe after fixedly finishing, see Fig. 6.Oligo-thiophenes is used 405nm laser, and the plastosome dyestuff uses 559nm laser.The result shows that oligo-thiophenes 9 can realize the imaging to cell, and the plastosome dyestuff finds that relatively this oligo-thiophenes can selectivity target plastosome.Therefore under lower concentration, oligo-thiophenes of the present invention is a kind of new plastosome dyestuff.
Apoptosis can be measured with Annexin V-FITC and the two dyeing of PI, and it is quantitative that flow cytometer (FACSCalibur, Becton, Dickinson and Company, USA) is used for carrying out apoptosis.Phosphatidylserine (Phosphatidylserine, PS) is normally at the inboard of cytolemma, but apoptotic early stage, PS can be turned to from the inboard of cytolemma the surface of cytolemma, is exposed in the extracellular environment.Annexin-V is that a kind of molecular weight is the Ca of 35 ~ 36KD
2+Dependency phospholipids incorporate albumen, can with PS high-affinity specific binding.Annexin-V is carried out fluorescein (FITC, PE) or biotin mark, as fluorescent probe, utilize flow cytometer or fluorescent microscope can detect apoptotic generation with the Annexin-V of mark.Propidium iodide (propidine iodide, PI) is a kind of nucleic acid dye, and it can not see through complete cytolemma, but at cell and the dead cell of apoptosis middle and advanced stage, and PI can permeate through cell membranes and made that nucleus is red to be dyed.Therefore Annexin-V is used with the PI coupling, just cell and the dead cell in apoptosis late period morning can be made a distinction.
Concrete steps: the A498 cell was cultivated 24 hours in 35 * 35mm Tissue Culture Dish, with 1 * PBS washing once, then added 1 milliliter of DMEM nutrient solution.The oligo-thiophenes 9 that adds respectively different concns with normal cultured cells in contrast, continues to cultivate 24 hours.To normally cultivate and the A498 cell of apoptosis-induced adherent culture is used first 0.25% trysinization, after centrifugal, wash 2 times with PBS, the Annexin-V(20 mcg/ml that adds 100 microlitre Binding Buffer and FITC mark) 10 microlitres, room temperature lucifuge 30 minutes, add again the PI(50 mcg/ml) 5 microlitres, the lucifuge reaction is after 5 minutes, add 400 microlitre Binding Buffer, carry out flow cytometry detection by quantitative (generally being no more than 1h) with FACScan immediately, negative control is set simultaneously.
Use 488nm laser in the experimentation, collect from the signal of FITC and PI with Channel FL-1 and FL-2 respectively.Collecting cell adds up to 3 * 10
4Individual.The results are shown in Figure 7.Show significantly cell death inducing of oligo-thiophenes 9.
Claims (1)
1. the oligo-thiophenes shown in the formula II or its salt:
(formula II)
Wherein, m=1; N is the integer among the 1-6;
R
1Be selected from the following radicals any one :-N
+(CH
3)
3,-N
+(CH
2CH
3)
3,-N (CH
3)
2,-NH (CH
2CH
3) ,-NHCH
3With-NH
2
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| CN105037692A (en) * | 2015-04-27 | 2015-11-11 | 中国科学院化学研究所 | Polythiophene, preparation method and application thereof |
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| CN105037692B (en) * | 2015-04-27 | 2017-03-01 | 中国科学院化学研究所 | Polythiophene and preparation method and application |
| CN104928227A (en) * | 2015-05-21 | 2015-09-23 | 中国科学院化学研究所 | Application of conjugated polymer PFP-G2 |
| CN104928227B (en) * | 2015-05-21 | 2018-06-19 | 中国科学院化学研究所 | The application of conjugated polymer PFP-G2 |
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